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Constant Voltage Transformer
Constant Voltage Transformer
Purevolt Products Private Limited, an ISO 9001: 2000 certified company, offers a Constant Voltage Transformer (CVT). In a Purevolt CVT, the AC mains powers the input winding, which widely separated physically from the isolated output winding. The input winding normally runs at very moderate flux linkage levels. The output winding exhibits an intrinsic energy storage characteristic and this energy storage operates in conjunction with mains capacitor to produce self-generated AC flux field with is indirectly excited from the input winding. The company was launched by a group of hardcore power electronics engineers and professionals with an objective of providing single-source solutions for solving all power problems faced by industries and domestic computer users. It manufactures variable auto transformers, digital inverters, servo voltage stabilisers, etc.
Product & Technology News
- Input voltage – 180 V-260 V
- Line frequency – 50 Hz
- Output voltage – 220-230 ±1%
- Output step load response – 2 cycles (30 to 40 milliseconds)
- Efficiency – 90% (approx) under full load conditions
- Output wave form – sinewave
- Wave from distortion – 5% (approx) under full load conditions
- Load power factor – 0.75% lag to 0.9 % lead
- Ambient temperature – -10°C to 50°C
- Transformer type – ferro-resonant
- Effect of frequency – 1.6 (approx) change in output voltage for every 1% change in line frequency
- Range – available in wide range from 50 VA to 10,000 VA with load test conducted at 0.8 power factor for all rating.
- No semiconductor or moving part used, hence very high reliability
- No feed back control used
- Intrinsic current limiting and short circuit protection
- Energy storage for line loss up to main 3 ms at typical load
- Short term over load capacity
- Higher input voltage control range for load less than rated low.
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